Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A method for transmitting a transport stream, the method comprising: generating the transport stream including a first data area in which first mobile data is placed, and a second data area in which second mobile data is variably placed according to mode; and transmitting, by a transmitter apparatus, the transport stream, wherein the transport stream is generated by placing the second mobile data and a normal data in the second data area when the mode is a first frame mode, and by placing the second mobile data in the entire second data area when the mode is a second frame mode.
A method for transmitting a digital broadcast transport stream divides the stream into two areas: a first area for primary mobile data and a second area for additional data. The second area is configured dynamically. In a first mode, the second area contains both secondary mobile data and normal broadcast data. In a second mode, the second area is entirely filled with the secondary mobile data. The transmitter then sends out the configured transport stream.
2. The method as claimed in claim 1 , further comprising: determining whether the first frame mode in which the normal data is placed in the second data area is set or whether the second frame mode in which the second mobile data is placed in the entire second data area is set, wherein the placing the second mobile data is performed if the second frame mode is determined to be set.
This method from above includes a step to determine how the second data area should be used. It checks if the system is set to use the first frame mode (secondary mobile data and normal data) or the second frame mode (only secondary mobile data). If the second frame mode is active, the system proceeds to fill the entire second area with secondary mobile data.
3. The method as claimed in claim 2 , further comprising, if the first frame mode is determined to be set, placing the normal data in packets allocated to the second data area and placing first mobile data, other than the second mobile data, in the first data area allocated to the first mobile data among the packets of the transport stream.
Continuing from the method which determines how the second data area should be used, this step details what happens if the system uses the first frame mode (secondary mobile data and normal data). The normal data is placed into packets within the second area. The primary mobile data (different from the secondary mobile data) is placed in packets within the dedicated first data area of the transport stream.
4. The method as claimed in claim 3 , wherein the second mobile data which is placed in the second data area in the second frame mode has a different version from that of the first mobile data.
This addition to the method of dynamically configuring a broadcast transport stream highlights that the secondary mobile data, used to fill the entire second data area in the second frame mode, is a different version or type of data than the primary mobile data located in the first data area.
5. The method as claimed in claim 2 , further comprising: if the first frame mode is determined to be set, determining a set mode of a placing pattern of the second mobile data in the second data area among the packets of the mobile stream, wherein the placing the second mobile data comprises placing the second mobile data in a predetermined number of packets corresponding to the determined set mode among the second data area in a pattern corresponding to the determined set mode.
Building upon the method that checks which frame mode is active, this expands on the first frame mode (secondary mobile data and normal data). If the first frame mode is chosen, a pattern is selected to determine where the secondary mobile data will be placed within the second data area’s packets. The secondary mobile data is then placed into a specific number of packets within the second data area, according to the selected pattern.
6. The method as claimed in claim 5 , wherein the mode is set to a first mode in which the second mobile data is placed in some packets of the second data area and a second mode in which the second mobile data is placed in all packets of the second data area.
In the method of dynamically configuring the broadcast data, the possible patterns for placing secondary mobile data in the first frame mode (secondary mobile data and normal data) include a first pattern where the secondary mobile data is placed in only some of the packets in the second data area, and a second pattern where it is placed in all packets of the second data area.
7. The method as claimed in claim 5 , wherein: a number of packets allocated to the second data area is 38; and the mode is set to one of: a first mode in which the second mobile data is placed in ¼ of packets except for a predetermined number of packets among the 38 packets; a second mode in which the second mobile data is placed in 2/4 of packets except for the predetermined number of packets among the 38 packets; a third mode in which the second mobile data is placed in ¾ of packets except for the predetermined number of packets among the 38 packets; and a fourth mode in which the second mobile data is placed in all of the 38 packets.
Continuing from the method defining how to place secondary mobile data using set modes, this specifies that the second data area contains 38 packets. The modes are: placing secondary mobile data in 1/4 of the packets (minus a fixed number), 2/4 of the packets (minus a fixed number), 3/4 of the packets (minus a fixed number), or all 38 packets.
8. The method as claimed in claim 1 , further comprising inserting known data into at least some of packets allocated to the normal data of the transport stream along with the second mobile data.
In addition to placing the secondary mobile data, this step introduces the insertion of known data sequences into some of the packets in the second data area alongside the secondary mobile data. This known data helps the receiver with synchronization and equalization.
9. The method as claimed in claim 8 , further comprising: Reed-Solomon (RS)-encoding the transport stream; and interleaving the transport stream, wherein the known data is placed in the transport stream so as to form continuous long training sequences in the normal data area after the interleaving.
Expanding on the insertion of known data, the transport stream is Reed-Solomon (RS) encoded and then interleaved. The known data is positioned so that after the interleaving process, it forms long, continuous training sequences within the original normal data portion of the second area. This creates a robust training signal for receiver adaptation.
10. The method as claimed in claim 1 , further comprising: placing known data in at least one area of at least part of the second data area, an MPEG header of at least one packet configuring the transport stream, an RS parity area, and at least part of a dummy included in first mobile data, different from the second mobile data, wherein the placing the second mobile data comprises placing the second mobile data in the at least one area of the at least part of the second data area, the MPEG header of the at least one packet configuring the transport stream, the RS parity area, and the at least part of the dummy included in first mobile data.
This variation on the method of transmitting broadcast data specifies that the known data can be inserted into several locations: parts of the second data area, MPEG headers of packets, RS parity areas, and even within dummy data within the first mobile data portion. The secondary mobile data is placed in the same areas.
11. The method as claimed in claim 1 , wherein the second mobile data is placed in the second data area toward a center packet from top and bottom packets of the transport stream in sequence.
Describing the placement of the secondary mobile data, this specifies that it is filled into the second data area starting from the outermost packets (top and bottom) and working its way towards the center packet.
12. The method as claimed in claim 1 , wherein the second mobile data is placed in the second data area toward top and bottom packets from a center packet of the transport stream in sequence.
Describing the placement of the secondary mobile data in the data stream, this specifies that it is filled into the second data area starting from the center packet and working its way outwards towards the top and bottom packets.
13. The method as claimed in claim 1 , wherein the placing the mobile data comprises placing a plurality of slots in which the mobile data is placed in different patterns for each of the plurality of slots, the plurality of slots being repeatedly arranged.
Detailing the method for placing the secondary mobile data, this specifies the use of different patterns repeated in slots. These slots contain secondary mobile data placed in different configurations and these slots are arranged sequentially.
14. The method as claimed in claim 1 , wherein the placing the second mobile data comprises placing the second mobile data in different patterns for each of a plurality of slots so that a first slot type in which the second mobile data is not placed in the entire second data area and a second slot type in which the second mobile data is placed in at least part of the second data area are alternately repeated.
Describing the placement patterns, this variation specifies two types of slots: one where the secondary mobile data doesn’t fill the entire second data area, and another where it does. These two slot types are then repeated alternating throughout the transport stream.
15. The method as claimed in claim 1 , further comprising block-coding the transport stream where the second mobile data is placed on a single block unit basis or a block group basis according to a pre-set block mode, the block group comprising plural blocks.
Enhancing the method, this adds a block coding step. The transport stream is processed in blocks and the data containing the second mobile data is block-coded either on a single block basis or on a group of blocks, with the selection determined by a preset block mode.
16. The method as claimed in claim 15 , further comprising configuring an RS frame by combining data to be block-coded according to pre-set configuration information.
Expanding on the block coding method, this details the creation of an RS frame by combining data designated for block coding. The configuration of this combination is guided by preset configuration information.
17. A digital broadcast receiver which receives the transport stream configured by the stream configuring method as claimed in claim 1 and which reproduces the second mobile data.
A digital broadcast receiver is described. This receiver is configured to receive transport streams created with the method of claim 1 (dividing the stream into two areas, a first area for primary mobile data and a second area for dynamically configured data) and is able to reproduce the second mobile data contained within those streams.
18. A digital broadcast transmitter, comprising: a data pre-processor which places second mobile data and normal data in a second data area when a frame mode is a first frame mode, and places the second mobile data in the entire second data area when the frame mode is a second frame mode; and a multiplexer which configures the transport stream including a first data area in which first mobile data is placed, and the second data area in which the second mobile data is variably placed according to the frame mode.
A digital broadcast transmitter is described. It includes a data pre-processor that dynamically configures a second data area, filling it with both secondary mobile data and normal data in a first mode, or filling it entirely with secondary mobile data in a second mode. A multiplexer then combines this dynamically configured area with a first data area containing primary mobile data to form the complete transport stream.
19. The digital broadcast transmitter as claimed in claim 18 , further comprising: a controller which determines a setting condition of the frame mode and controls an operation of the data pre-processor according to the determined setting condition, wherein, if the setting condition of the frame mode is determined to be the first frame mode, the controller controls the data pre-processor to place the normal data in the second data area, and, if the setting condition of the frame mode is determined to be the second frame mode, the controller controls the data pre-processor to place the second mobile data in the entire second data area.
This transmitter includes a controller that manages the data pre-processor's behavior, determining which frame mode (first mode: secondary mobile data and normal data, second mode: only secondary mobile data) is active. Based on this determination, it instructs the data pre-processor to place either normal data alongside secondary mobile data, or only secondary mobile data in the second data area.
20. The digital broadcast transmitter as claimed in claim 19 , wherein a version of the second mobile data placed in the second data area in the second frame mode is different from a version of the first mobile data placed in the first data area among the packets of the transport stream.
Expanding on the digital broadcast transmitter, the version or type of secondary mobile data placed into the second data area when the second frame mode is active is different from the version or type of primary mobile data placed into the first data area of the transport stream.
21. The digital broadcast transmitter as claimed in claim 19 , wherein, if the setting condition of the frame mode is determined to be the first frame mode, the controller determines a set mode indicating a placing pattern of the second mobile data in the second data area among the packets of the mobile stream and controls the data pre-processor to place the second mobile data in a predetermined number of packets corresponding to the determined set mode among the second data area.
Describing the digital broadcast transmitter, if the first frame mode is active, the controller selects a pattern to define the placement of the secondary mobile data within the second data area's packets. It then directs the data pre-processor to insert the secondary mobile data into a specific number of packets, based on the selected placement pattern.
22. The digital broadcast transmitter as claimed in claim 21 , wherein the set mode is one of a first mode in which the second mobile data is placed in some packets of the second data area and a second mode in which the second mobile data is placed in all packets of the second data area.
In the digital broadcast transmitter, the patterns for placing secondary mobile data in the first frame mode are defined: one where the secondary mobile data is placed in some packets within the second data area, and another where it is placed in all packets within the second data area.
23. The digital broadcast transmitter as claimed in claim 21 , wherein: a number of packets allocated to the second data area is 38; and the mode is set to one of: a first mode in which the second mobile data is placed in ¼ of packets except for a predetermined number of packets among the 38 packets, a second mode in which the second mobile data is placed in 2/4 of packets except for the predetermined number of packets among the 38 packets, a third mode in which the second mobile data is placed in ¾ of packets except for the predetermined number of packets among the 38 packets, and a fourth mode in which the second mobile data is placed in all of the 38 packets.
Further specifying the digital broadcast transmitter, the second data area is comprised of 38 packets. The placement options are: placing secondary mobile data in 1/4 of the packets (minus a fixed number), 2/4 of the packets (minus a fixed number), 3/4 of the packets (minus a fixed number), or all 38 packets.
24. The digital broadcast transmitter as claimed in claim 21 , wherein the data pre-processor inserts known data into at least part of the second data area along with the second mobile data.
The transmitter data pre-processor inserts known data sequences into parts of the second data area in addition to the secondary mobile data. This helps with receiver synchronization and equalization.
25. The digital broadcast transmitter as claimed in claim 24 , further comprising: an RS encoder which RS encodes the transport stream; and an interleaver which interleaves the RS-encoded transport stream, wherein the data pre-processor inserts the known data so that the known data is placed in a location of the transport stream to form continuous long training sequences in the second data area, after being interleaved.
This version of the digital broadcast transmitter also includes an RS encoder and an interleaver. The data pre-processor inserts known data in a way such that, after RS encoding and interleaving, the known data forms long, continuous training sequences within the normal data portion of the second data area.
26. The digital broadcast transmitter as claimed in claim 24 , wherein the data pre-processor places the second mobile data and the known data in at least one area of at least part of the second data area, an MPEG header of at least one packet configuring the transport stream, an RS parity area, and at least part of a dummy included in a packet of first mobile data, different from the second mobile data.
The digital broadcast transmitter includes a data pre-processor to place the secondary mobile data and the known data in areas among: parts of the second data area, MPEG headers of packets, RS parity areas, and even within dummy data within packets in the first mobile data portion.
27. The digital broadcast transmitter as claimed in claim 18 , wherein the second mobile data is placed in the second data area toward a center packet from top and bottom packets of the transport stream in sequence.
Describing the placement of secondary mobile data, this transmitter places the data in the second data area working towards the center packets from the top and bottom packets of the transport stream.
28. The digital broadcast transmitter as claimed in claim 18 , wherein the second mobile data is placed in the second data area toward top and bottom packets from a center packet of the transport stream in sequence.
Describing the placement of secondary mobile data, this transmitter places the data in the second data area working away from the center packet and towards the top and bottom packets of the transport stream.
29. The digital broadcast transmitter as claimed in claim 18 , wherein the data pre-processor places a plurality of slots in which the second mobile data is placed in different patterns for each of the plurality of slots, the plurality of slots being repeatedly arranged.
This transmitter includes a data pre-processor that places the secondary mobile data in slots that are repeated throughout the transport stream, where each slot has a different pattern of secondary mobile data placement.
30. The digital broadcast transmitter as claimed in claim 18 , wherein the data pre-processor places the second mobile data in different patterns for each of a plurality of slots so that a first slot type in which the second mobile data is not placed in the entire second data area and a second slot type in which the second mobile data is placed in at least part of the second data area are alternately repeated.
This transmitter has a data pre-processor that arranges the secondary mobile data into two alternating slot types. The first slot does not fill the second data area, and the second slot contains secondary mobile data.
31. The digital broadcast transmitter as claimed in claim 18 , wherein: the data pre-processor comprises a block processor which block-codes the transport stream where the second mobile data is placed; each of the normal data area and a first mobile data area allocated to first mobile data, different from the second mobile data, is divided into a plurality of blocks, wherein the block processor performs coding on a single block unit basis or on a block group basis according to a pre-set block mode, the block group comprising plural blocks.
The digital broadcast transmitter contains a block processor. Each of the normal data area and a first mobile data area are divided into a plurality of blocks. The block processor codes the blocks on a single block basis or on a block group basis.
32. The digital broadcast transmitter as claimed in claim 31 , wherein the data pre-processor configures an RS frame by combining data to be block-coded according to pre-set configuration information.
The digital broadcast transmitter pre-processor is described to configure the RS frame. The data that is to be block coded is combined according to a pre-set configuration.
33. The digital broadcast transmitter as claimed in claim 18 , further comprising: a trellis encoding unit which trellis-encodes the transport stream using a trellis encoder comprising a plurality of memories, wherein the trellis encoder resets the plurality of memories to a desired value at a predetermined time.
This digital broadcast transmitter includes a data pre-processor and a multiplexer. The data pre-processor organizes data for transmission by placing "second mobile data" alongside "normal data" into a "second data area" within a transport stream when operating in a "first frame mode." Alternatively, in a "second frame mode," it places only the "second mobile data" into the *entire* "second data area." The multiplexer then configures the complete transport stream, which also contains a "first data area" for "first mobile data" and the dynamically configured "second data area." Additionally, the transmitter incorporates a trellis encoding unit. This unit performs trellis encoding on the transport stream using a trellis encoder. A key feature of this trellis encoder is that it contains multiple internal memories, and these memories are designed to be reset to a specific, desired value at predetermined times during its operation. ERROR (embedding): Error: Failed to save embedding: Could not find the 'embedding' column of 'patent_claims' in the schema cache
34. The digital broadcast transmitter as claimed in claim 33 , wherein the trellis encoder comprises: first and second multiplexers; first through fourth adders; and first through third memories, wherein the third adder adds a memory reset value input from an external source to a storage value of the first memory and outputs a resulting value to the first multiplexer, wherein the first multiplexer outputs one of a stream input value and an output value from the third adder to the first adder selectively according to a control signal, wherein the first adder adds an output value from the first multiplexer to the storage value of the first memory and outputs a resulting value as an encoding value, wherein the fourth adder adds a memory reset value input from an external source to a storage value of the third memory, wherein the second multiplexer outputs one of a stream input value and an output value from the fourth adder selectively according to a control signal, wherein the second adder adds an output value from the second multiplexer to an output value from the third memory and stores a resulting value in the second memory, wherein the third memory stores a value which is shifted from the second memory.
Detailing the trellis encoder in the digital broadcast transmitter, it contains multiplexers, adders, and memory elements. The encoder is capable of resetting the memory elements. A memory reset value input is used to set the desired memory state.
35. The digital broadcast transmitter as claimed in claim 33 , wherein the trellis encoder comprises: first through fourth multiplexers; first through fourth adders; and first through third memories, wherein the third multiplexer outputs to the first memory one of a first memory reset value input from a first external source and an output value from the first adder selectively according to a control signal, wherein the third adder adds the first memory reset value to an output value from the first memory and outputs a resulting value to the first multiplexer, wherein the fourth multiplexer outputs to the second memory one of a second memory reset value input from a second external source and an output value from the second adder selectively according to a control signal, wherein a value stored in the second memory is shifted to and stored in the third memory, wherein the fourth adder adds a value output from the third memory by the shifting to the second memory reset value and outputs a resulting value to the second multiplexer.
This alternative trellis encoder in the digital broadcast transmitter contains multiple multiplexers, adders, and memory elements. The encoder outputs to the first memory one of a first memory reset value and an output value from the first adder.
36. The digital broadcast transmitter as claimed in claim 33 , wherein the trellis encoder comprises: first and second adders; third and fourth multiplexers; and first through third memories, wherein the third multiplexer outputs to the first memory one of an output value from the first adder and a first memory reset value input from a first external source selectively according to a control signal, wherein the fourth multiplexer outputs to the second memory one of an output value from the second adder and a second memory reset value input from a second external source selectively according to a control signal, wherein a value stored in the second memory is shifted to and stored in the third memory.
This alternative trellis encoder in the digital broadcast transmitter contains adders, multiplexers, and memory elements. The memory elements are configured with one of an output value from the adder or a memory reset value, which is determined via a control signal.
37. A method for processing a transport stream of a digital broadcast receiver, the method comprising: receiving the transport stream which is divided into a first area in which first mobile data is placed and a second area in which second mobile data is variably placed according to mode; equalizing the demodulated transport stream; and decoding at least one of the first mobile data and the second mobile data from the equalized transport stream, wherein the transport stream is generated by placing the second mobile data and a normal data in the second data area when the mode is a first frame mode, and by placing the second mobile data in the entire second data area when the mode is a second frame mode.
A method for a digital broadcast receiver to process a transport stream. The stream has two areas: a first area for primary mobile data and a second dynamically configured area. This stream is equalized. The first and second mobile data is then decoded. The second data area contains both secondary mobile data and normal data in the first frame mode, but contains only secondary mobile data in the second frame mode.
38. The method as claimed in claim 37 , further comprising: receiving a signaling signal; and decoding the signaling signal, wherein the decoding comprises detecting at least one of the first mobile data and the second mobile data comprised in the transport stream using the decoded signaling signal, and decoding the detected at least one of the first mobile data and the second mobile data.
In addition to the method for processing a transport stream from above, a signaling signal is received and decoded. Then the transport stream’s mobile data is detected and decoded using the decoded signaling signal.
39. The method as claimed in claim 37 , wherein the transport stream has a configuration in which the normal data is placed in all packets of the second data area and the first mobile data is placed in all the packets of the first data area, or a configuration in which the first mobile data is placed in all the packets of the first data area and the second mobile data is placed in at least some of the packets of the second data area.
The digital broadcast receiver receives a transport stream. The transport stream can be in one of two configurations: either the normal data is placed in all packets of the second area and primary mobile data in the first area, or the primary mobile data is placed in all the packets of the first area and secondary mobile data is placed in some of the packets of the second area.
40. The method as claimed in claim 37 , wherein: the second data area comprises 38 packets; and the transport stream has one of: a first configuration in which the second mobile data is placed in ¼ of packets except for a predetermined number of packets among the 38 packet; a second configuration in which the second mobile data is placed 2/4 of packets except for the predetermined number of packets among the 38 packets; a third configuration in which the second mobile data is placed in ¾ of packets except for the predetermined number of packets among the 38 packets; and a fourth configuration in which the second mobile data is placed in all of the 38 packets.
Detailing the format of the transport stream received by a digital broadcast receiver, the second data area comprises 38 packets. The transport stream's configuration consists of different modes for secondary mobile data placement including placement in: 1/4 of packets (minus a fixed number), 2/4 of packets (minus a fixed number), 3/4 of packets (minus a fixed number), and all 38 packets.
41. The method as claimed in claim 37 , further comprising: detecting known data from the transport stream, wherein the demodulating and the equalizing are performed by using the detected known data.
This method for processing a transport stream by the digital broadcast receiver also includes detecting known data sequences within the stream, which are then used for demodulation and equalization.
42. The method as claimed in claim 41 , wherein the transport stream has a configuration in which the known data is inserted into at least part of the second data area along with the second mobile data.
In the method for processing a transport stream by the digital broadcast receiver, the transport stream is configured such that the known data sequences are inserted in part of the second data area along with the secondary mobile data.
43. The method as claimed in claim 37 , wherein the transport stream has a configuration in which the second mobile data and known data are placed in at least one area among at least part of the second data area, an MPEG header of at least one packet configuring the transport stream, an RS parity area, and at least part of a dummy included in a first mobile data packet.
This digital broadcast receiver processes a transport stream. The transport stream configuration has the second mobile data and known data in areas among: parts of the second data area, MPEG headers of packets, RS parity areas, and within dummy data within packets in the first mobile data portion.
44. The method as claimed in claim 37 , wherein the second mobile data is placed in the second data area toward a center packet from top and bottom packets in the transport stream in sequence.
Detailing the format of the transport stream received, the secondary mobile data is placed in the second data area beginning at the outermost packets (top and bottom) working towards the center packet.
45. The method as claimed in claim 37 , wherein the second mobile data is placed in the second data area toward top and bottom packets from a center packet in the transport stream in sequence.
Detailing the format of the transport stream received, the secondary mobile data is placed in the second data area beginning at the center packet working towards the outer packets (top and bottom).
46. The method as claimed in claim 37 , wherein the transport stream has a configuration in which a plurality of slots in which the second mobile data is placed in different patterns for each of the plurality of slots is repeatedly arranged.
Detailing the format of the transport stream received, the transport stream has slots with different patterns for placement of the secondary mobile data, arranged repeatedly.
47. The method as claimed in claim 37 , wherein the transport stream has a configuration in which a first slot in which the second mobile data is not placed among the packets allocated to the normal data and a second slot in which the second mobile data is placed in at least some of the packets allocated to the normal data are alternately repeated.
Detailing the format of the transport stream received, the transport stream slots alternate between a first slot type (the packets allocated to normal data contain no second mobile data), and a second slot type (the packets allocated to normal data contain some second mobile data).
48. A digital broadcast receiver, comprising: a receiver which receives a transport stream which is divided into a first area in which first mobile data is placed and a second area in which second mobile data is variably placed according to mode; a demodulator which demodulates the transport stream; an equalizer which equalizes the demodulated transport stream; and a decoding unit which decodes at least one of the first mobile data and the second mobile data from the equalized transport stream, wherein the transport stream is generated by placing the second mobile data and a normal data in the second data area when the mode is a first frame mode, and by placing the second mobile data in the entire second data area when the mode is a second frame mode.
A digital broadcast receiver is described. The receiver contains a demodulator to demodulate the stream, an equalizer to equalize the stream, and a decoding unit to decode data from the stream. The transport stream is divided into a first area (primary mobile data) and a second area (dynamic data). In the first frame mode the second area has secondary mobile data and normal data, but in the second frame mode the second area is entirely second mobile data.
49. The digital broadcast receiver as claimed in claim 48 , further comprising: a signaling decoder which decodes a received signaling signal, wherein the decoding unit detects at least one of the first mobile data and the second mobile data comprised in the transport stream using the decoded signaling signal, and decodes the detected at least one of the first mobile data and the second mobile data.
In addition to the digital broadcast receiver described, it contains a signaling decoder to decode a received signal. The decoding unit then detects mobile data contained in the transport stream.
50. The digital broadcast receiver as claimed in claim 48 , wherein the transport stream has a configuration in which the normal data is placed in all packets of the second data area or a configuration in which the first mobile data is placed in all packets of the first data area and the second mobile data is placed at least some of the packets of the second data area.
This digital broadcast receiver receives a transport stream. The stream can be configured so that the packets in the second data area are filled with the normal data. The stream can also be configured so that the packets in the first data area are filled with the first mobile data, and the packets in the second data area have some second mobile data.
51. The digital broadcast receiver as claimed in claim 48 , wherein: the second data area comprises 38 packets; and the transport stream has one of: a first configuration in which the second mobile data is placed in ¼ of packets except for a predetermined number of packets among the 38 packets, a second configuration in which the second mobile data is placed 2/4 of packets except for the predetermined number of packets among the 38 packets, a third configuration in which the second mobile data is placed in ¾ of packets except for the predetermined number of packets among the 38 packets, and a fourth configuration in which the second mobile data is placed in all of the 38 packets.
The transport stream has the second data area configured as 38 packets. The transport stream can be configured with placements in: 1/4 of packets (minus a fixed number), 2/4 of packets (minus a fixed number), 3/4 of packets (minus a fixed number), and all 38 packets.
52. The digital broadcast receiver as claimed in claim 48 , further comprising: a detector which detects known data from the transport stream, wherein the demodulator and the equalizer perform demodulating and equalizing using the detected known data.
The digital broadcast receiver includes a detector. The detector detects known data from the transport stream. This known data is used to assist with demodulating and equalizing the signal.
53. The digital broadcast receiver as claimed in claim 52 , wherein the transport stream has a configuration in which the known data is inserted into at least part of the second data area along with the second mobile data.
The transport stream configuration includes a configuration in which known data is inserted into part of the second data area along with the second mobile data.
54. The digital broadcast receiver as claimed in claim 53 , wherein the transport stream has a configuration in which the second mobile data and the known data are placed in at least one area among at least part of the second data area, an MPEG header of at least one packet configuring the transport stream, an RS parity area, and at least part of a dummy included in a first mobile data packet.
The transport stream configuration includes a configuration in which known data is inserted into areas including parts of the second data area, MPEG headers of packets, RS parity areas, and within dummy data within packets in the first mobile data portion.
55. The digital broadcast receiver as claimed in claim 48 , wherein the second mobile data is sequentially placed toward a center packet from top and bottom packets among a plurality of packets allocated to the normal data in the transport stream.
The received data is placed such that secondary mobile data is sequentially placed toward a center packet from top and bottom packets among a plurality of packets allocated to the normal data in the transport stream.
56. The digital broadcast receiver as claimed in claim 48 , wherein the second mobile data is sequentially placed toward top and bottom packets from a center packet among a plurality of packets allocated to the normal data in the transport stream.
The received data is placed such that secondary mobile data is sequentially placed toward top and bottom packets from a center packet among a plurality of packets allocated to the normal data in the transport stream.
57. The digital broadcast receiver as claimed in claim 48 , wherein the transport stream has a configuration in which a plurality of slots in which the second mobile data is placed in different patterns for each of the plurality of slots is repeatedly arranged.
The configuration of the transport stream is described such that there are multiple slots. In each slot, the placement of the secondary mobile data is configured with different patterns for each of the slots. The multiple slots with the various patterns are then arranged repeatedly.
58. The digital broadcast receiver as claimed in claim 57 , wherein the transport stream has a configuration in which a first slot in which the second mobile data is not placed among the packets allocated to the normal data and a second slot in which the second mobile data is placed in at least some of the packets allocated to the normal data are alternately repeated.
The transport stream has a first slot and a second slot. The second mobile data is not placed in the packets allocated to the normal data in the first slot. In the second slot, second mobile data is placed in at least some of the packets allocated to normal data. The first and second slots are arranged repeatedly.
59. The digital broadcast receiver as claimed in claim 48 , wherein the decoding unit comprises: a first decoder which convolution-decodes the second mobile data; and a second decoder which RS-decodes the second mobile data.
The digital broadcast receiver's decoding unit contains a first decoder to convolutionally decode the second mobile data and a second decoder to RS-decode the second mobile data.
60. The digital broadcast receiver as claimed in claim 49 , wherein: if the digital broadcast receiver supports a standard using the first frame mode and if the transport stream is determined, based on the decoded signaling signal, to comprise the second mobile data inserted in a pattern according to the first frame mode, the decoding unit detects the second mobile data inserted into the packets allocated to the second data area and decodes the second mobile data; and if the digital broadcast receiver does not support a standard using the first frame mode and the second frame mode, the decoding unit detects the second mobile data from a packet other than the packets allocated to the second data area and decodes the detected second mobile data.
The digital broadcast receiver supports either a standard using the first frame mode, or one that does not support a standard using the first frame mode and the second frame mode. Based on the decoded signaling signal, if the second mobile data is in a pattern according to the first frame mode, then the decoding unit detects and decodes the second mobile data inserted into the packets in the second data area. Or, if the broadcast receiver doesn't support the first frame mode and the second frame mode, then the decoding unit detects and decodes the second mobile data from packets that are not in the second data area.
61. A non-transitory computer readable recording medium having recorded thereon a program executable by a computer for performing the method of claim 1 .
A non-transitory computer-readable medium stores a program executable by a computer to perform the method to transmit a transport stream, where the method comprises generating the transport stream including a first data area in which first mobile data is placed, and a second data area in which second mobile data is variably placed according to mode; and transmitting the transport stream, wherein the transport stream is generated by placing the second mobile data and a normal data in the second data area when the mode is a first frame mode, and by placing the second mobile data in the entire second data area when the mode is a second frame mode.
62. A non-transitory computer readable recording medium having recorded thereon a program executable by a computer for performing the method of claim 37 .
A non-transitory computer-readable medium stores a program executable by a computer to perform the method for processing a transport stream of a digital broadcast receiver, the method comprising: receiving the transport stream which is divided into a first area in which first mobile data is placed and a second area in which second mobile data is variably placed according to mode; equalizing the demodulated transport stream; and decoding at least one of the first mobile data and the second mobile data from the equalized transport stream, wherein the transport stream is generated by placing the second mobile data and a normal data in the second data area when the mode is a first frame mode, and by placing the second mobile data in the entire second data area when the mode is a second frame mode.
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August 5, 2014
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